Patent US5173840A successfully refreshed from Google Patents.
US5173840A
Expired / Lapsed
US
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Molded ic card
Assignee: Mitsubishi Electric Corp
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Filing: 1991-04-25
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Granted: 1992-12-22
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Expires: 2011-04-25
Abstract
Abstract An IC card includes a thin plate forming an external surface of the card, a circuit board formed on an internal surface of the thin plate, and a frame surrounding peripheries of the thin plate and the circuit board. A space defined by the frame and the surface plate is filled with molded resin. A portion of an inner peripheral surface of the frame projects into the resin. The molded resin completely covers a surface of the circuit board and integrates the frame and the thin plate.
Inventors
- 👤 Shojiro Kodai
- 👤 Katsunori Ochi
- 👤 Osamu Murakami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:57
CPC Classifications
G; G06; G06K; G06K19/00; G06K19/06; G06K19/067; G06K19/07; G06K19/077; G06K19/07745; H; H05; H05K; H05K3/00; H05K3/22; H05K3/28; H05K3/284; H05K3/0058
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
94 words
An IC card comprising: a surface plate forming one surface of said IC card, a circuit board attached to an internal surface of said surface plate and incorporating a semiconductor element, a frame formed to extend along a peripheral edge of said surface plate and to surround said surface plate and said circuit board, and a filler which fills a space defined by said frame and said surface plate and forms a rear surface of said IC card; and wherein a portion of an inner peripheral surface of said frame projects into said filler.
Claim 2
Dependent Claim
94 words
An IC card comprising: a surface plate forming one surface of said IC card, a circuit board attached to an internal surface of said surface plate and incorporating a semiconductor element, a frame formed to extend along a peripheral edge of said surface plate and to surround said surface plate and said circuit board, and a filler which fills a space defined by said frame and said surface plate and forms a rear surface of said IC card; and wherein a portion of an inner peripheral surface of said frame projects into said filler.
Claim 3
Dependent Claim
23 words
An IC card according to claim 1, wherein said inward projection is formed continuously along an outer peripheral edge of said circuit substrate.
Claim 4
Dependent Claim
29 words
The IC card according to claim 2, wherein said inward projection has a through hole extending from a front side of said IC card to a rear side thereof.
Claim 5
Dependent Claim
23 words
The IC card according to claim 1, wherein said inward projection is partially formed along an outer peripheral edge of said circuit board.
Claim 6
Dependent Claim
29 words
The IC card according to claim 4, wherein said inward projection has a through hole extending from a front side of said IC card to a rear side thereof.
Claim 7
Dependent Claim
22 words
The IC card according to claim 1, wherein said circuit board has a connection terminal penetrating said surface plate and externally exposed.
Claim 8
Dependent Claim
24 words
The IC card according to claim 1, wherein said portion of said inner peripheral surface of said frame projecting into said filler is dumbbell-shaped.
Claim 9
Dependent Claim
76 words
The IC card comprising: a circuit board incorporating a semiconductor element, a frame formed to extend along a peripheral edge of said circuit board and to surround said circuit board, and a filler which fills a space defined by said frame and forms a surface of said IC card, wherein a portion of an inner peripheral surface of said frame projects into said filler to prevent separation of the filler and the frame from each other.
Claim 10
Dependent Claim
76 words
The IC card comprising: a circuit board incorporating a semiconductor element, a frame formed to extend along a peripheral edge of said circuit board and to surround said circuit board, and a filler which fills a space defined by said frame and forms a surface of said IC card, wherein a portion of an inner peripheral surface of said frame projects into said filler to prevent separation of the filler and the frame from each other.
Claim 11
Dependent Claim
22 words
The IC card according to claim 8, wherein, said portion of said inner peripheral surface of said frame contacts said circuit board.
References Cited (Backward Citations)
US4746392A
Cited
JPS60189587A
Cited
JPS60217492A
Cited
US4754319A
Cited
US4682017A
Cited
FR2586886A1
Cited
US4758689A
Cited
EP0340100A1
Cited
US4961893A
Cited
US5030407A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-12-22 | 1996-06-22 | 1996-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-12-22 | 2000-06-22 | 2000-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-12-22 | 2004-06-22 | 2004-12-22 | $7700.00 | Window Closed / Lapsed |